77515860060 has 192 divisors, whose sum is σ = 247244659200. Its totient is φ = 20151258624.

The previous prime is 77515860049. The next prime is 77515860077. The reversal of 77515860060 is 6006851577.

77515860060 is a `hidden beast` number, since 7 + 7 + 5 + 1 + 586 + 0 + 0 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 77515859988 and 77515860015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13209247 + ... + 13215113.

It is an arithmetic number, because the mean of its divisors is an integer number (1287732600).

Almost surely, 2^77515860060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77515860060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123622329600).

77515860060 is an abundant number, since it is smaller than the sum of its proper divisors (169728799140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77515860060 is a wasteful number, since it uses less digits than its factorization.

77515860060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497 (or 6489 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 77515860060 in words is "seventy-seven billion, five hundred fifteen million, eight hundred sixty thousand, sixty".